// 电动汽车专利分布数据
const data = {
  name: "电动汽车",
  children: [
    {
      name: "动力电池",
      children: [
        { name: "广州小鹏汽车科技有限公司", weight: 50, color: "#fa7f6f" },
        { name: "蔚来汽车控股有限公司", weight: 40, color: "#6cc070" },
        { name: "北京车和家信息技术有限公司", weight: 30, color: "#609dd2" }
      ]
    },
    {
      name: "控制系统",
      children: [
        { name: "广州小鹏汽车科技有限公司", weight: 45, color: "#fa7f6f" },
        { name: "蔚来汽车控股有限公司", weight: 35, color: "#6cc070" },
        { name: "北京车和家信息技术有限公司", weight: 25, color: "#609dd2" }
      ]
    },
    {
      name: "车辆终端",
      children: [
        { name: "蔚来汽车控股有限公司", weight: 30, color: "#6cc070" },
        { name: "广州小鹏汽车科技有限公司", weight: 20, color: "#fa7f6f" }
      ]
    },
    {
      name: "服务器",
      children: [
        { name: "北京车和家信息技术有限公司", weight: 25, color: "#609dd2" },
        { name: "蔚来汽车控股有限公司", weight: 15, color: "#6cc070" }
      ]
    }
  ]
};